A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 6130-00-199-4210
NSN 5855-01-247-0012
NSN 5990-00-633-7634
NSN 6135-01-374-6631
NSN 5985-00-935-5074
NSN 5930-01-530-0724
NSN 5915-01-475-1307
NSN 5999-00-598-6055
NSN 5930-01-534-3451
NSN 2925-01-118-6125
NSN 6220-01-152-2637
NSN 5905-01-396-3241